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Finding the Fourth Proportional to 1,186,084, 1,636,801.68 and 649,540

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Solution

The fourth proportional to 1,186,084, 1,636,801.68 and 649,540 is: 896,368.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,084 : 1,636,801.68 = 649,540 : x
  2. Step 2: Convert to fraction form
    1,186,084/1,636,801.68 = 649,540/x
  3. Step 3: Cross multiply
    1,186,084x = 1,636,801.68 × 649,540
  4. Step 4: Simplify right side
    1,186,084x = 1,063,168,163,227.20
  5. Step 5: Solve for x
    x = 1,063,168,163,227.20/1,186,084
  6. Step 6: Final answer
    x = 896,368.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.